I had not heard of this either but I found this medical article about a form of CSF leak that can cause headache and which is often misdiagnosed. The article refers to the blood patch test and explains more about CSF so it might be a good starting reference.
http://serendip.brynmawr.edu/exchange/node/1688
In looking for information I came across a few posts made earlier this year on other forums by people with POTS diagnoses who were being checked out for CSF leaks. I have never heard anyone on this forum talk about it.
Let us know what you find out and I hope this is helpful. Marie
Maritza,
My short answer? No, I've never heard of it. :-/ If I were you I would ask about the risks involved with the procedure, and if you're concerned, get a second opinion before moving forward considering it's not something we typically hear of with regard to dysautonomia symptoms (at least I've never come across it in all my reading/talking to people here and elsewhere online that I can recall).
If you do get a second opinion and they say go for it, who knows? If there could be a permanent fix to your symptoms, well ... if it were me I'd certainly at least look into it. Sorry I don't know more information to tell you; maybe someone else here will,
-Heiferly.
I wish I had more info for you, sorry.